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(No Model.) 2 Sh'eetS Sheet 1.

v H. GAUNT 8: S. E. WILD.

STOP MOTION FOR LOOMS Patented Sept. 12, 1893.

lmicneooeo & 7611/ WZMJ/ (No Model.) 2 Sheets-Sheet 2.

H. GAUNT & s. E. WILD.

I STOP MOTION FOR LOOMS.

No. 504,832. Patented Sept. 12, 1893.

q htneoog QQ/ 7 4M UNITED STATES PATENT OFFICE.

HENRY GAUNT AND SAMUEL E. WVILD, OF WOONSOCKET, RHODE ISLAND,

ASSIGNORS TO THE KNOWLES LOOM WORKS, OF IVOROES'IER, MASSA- CHUSETTS.

STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent N0. 504,832, dated September 12, 1893.

Application filed March 9, 1893- Serial No. 465,232. (No model.)

To all whom it may concern.-

Be it known that we, HENRY GAUNT and SAMUEL E. WILD, citizens of the United States, residing at Woonsocket, in the county of Providence and State of Rhode Island, have jointly invented certain new and useful Improvements in Stop-Motions for Looms; and we do hereby declare that the following is a full, clear, and exact description thereof,

which, in connection with the drawings making a part of this specification, will enable others skilled in the art to which our invention belongs to make and use the same.

Our invention relates to stop motions for I5 looms and more particularly to that class of stop motions ordinarily termed shuttle smash protector mechanism, for automatically operating the shipping mechanism to stop the loom.

In looms in which the picking motion on both sides of the shed is operated after each beat of the lay, it often happens that through defective operation of the shuttle operating mechanism, a shuttle is not properly picked 2 5 from its box, but is left with its end project ing beyond the end of the lay, and if the loom continues to operate a shuttle from each side of the shed will be picked through the shed at the same time, causing a smash which go will injure the fabric being woven, and also the loom.

The object of our invention is to provide a simple and efiective stop motion to automatically stop the loom upon the forward beat of 3 5 the lay, and prevent the shuttles from leaving their shuttle boxes, in case of defective operation of the picking mechanism, or from any other cause.

Our invention consists in certain novel fea- 0 tures of construction and operation of a stop motion for looms, and more particularly in combining with each end of the lay a'pivoted arm, with its free end adapted to engage the end of a shuttle projecting from its shuttle 5 box, over the end of the lay, and with a projecting arm thereon adapted to engage an arm fast on the shipper shaft of the shipping mechanism, as will be hereinafter fully described, and the nature thereof indicated by the claims.

Referring to the drawingsz-Figure 1 is a sectional elevation of a portion of a loom, taken on line 1, 1, Fig. 2, looking in the direction of arrow at, same figure, with ourimproved stop motion applied thereto. Fig. 2 is a front elevation of portions of the loom shown in Fig. 1, looking in the direction of arrow 1), Fig. 1, with the breast beam and some of the parts removed for the sake of clearness, and Fig. 3 is a plan view of the parts shown 111 50 Fig. 2, looking in the direct-ion of arrow 0, same figure.

In the accompanying drawings, 1 1s a portion of one side of the loom frame. 2 is the lay sword, pivoted at its lower end on the shaft 3 supported in the loom frame, and 4 IS the connector extending to the crank shaft, not shown. 5 is the lay, 5 the race plate, 6 the hand rail, and 7 the breast beam. A portion of the shuttle boxes 8 is shown at one end of the lay, and each shuttle box is provided with a swell finger 9, in the ordinary way; only one finger is shown in the drawings. A shipper shaft 10 is supported in bearings under the breast beam, and the shipper lever 11 is fast thereon, and provided with a handle 11 at its upper end, and a pin 11" at its lower end, adapted to engage a slot in the upper end of the lock lever 12, mounted on a stud 13 secured to the loom side 1, and with its lower end connected with the shipper rod 24, shown in dotted lines, Fig. 1. All of the above parts are of well known construction and operation, and the shipping mechanism shown in the drawings is the well known Knowles lock lever shipping mechanism, shown and described in United States Patent No. 197,6e1.

We will now proceed to describe our stop motion combined with the shipping mechanism shown in the drawings, and above described.

Upon the front of the lay, at each end thereof, (only one end being shown in the drawings,) is supported a pivoted arm 14, eX- 95 tending longitudinally in the direction of the lay, with its inner end pivotally attached to the front of the lay, in this instance by a pin 15, supported in a plate 16, attached to the front of the lay by screws 17. The upper mo edge of the arm 14, when the arm is in its normal position, as shown in the drawings, extends in a plane substantially on a level with the race plate 5' of the lay, and is supported in this position by a knob or stud 18, secured in the front side of the lay, see Fig. 2. The free end 14' of the arm 14 is bent so as to extend around the end of the race plate 5' of the lay, as shown in Fig. 3, and in front of the mouth of the shuttle boxes. Projecting down from the arm 14, near the free end thereof, is a rigid arm 19, preferably made integral with the arm 14, as shown in Figs. 1 and 2, with its lower end preferably projecting below the lay, and preferably curved outwardly, and provided with a roller 20 at the end thereof.

Fast on the shipper shaft 10 is an arm 21, adjustably secured on said shaft by a set screw 22, which arm extends inwardly toward the lay, and has its outer end 21 inclined, and preferably broadened, as shown in Fig 3. The arm 21 is so placed on the shipper shaft 10, that the end 21 thereof will extend directly in the path of the roller 20 at the end of the arm 19 on the pivoted arm 14, so that as the lay beats up the roller 20 will ride on the inclined end 21 of the arm 21, and thus raise the free end of the arm 14 above the end of the lay.

From the above description, in connection with the drawings, the operation of our stop motion will be readily understood by those skilled in the art.

It will be understood, as before stated, that a pivoted arm 14 is arranged at each end of the lay, and a rigid arm 21 is attached at each end of the shipper shaft.

As long as the picking mechanism, and shuttle box operating mechanism are properly operated, and none of the shuttles project beyond the end of the box, the loom will continue to operate, and the free end of the pivoted arm 14 will be free to be raised above the end of the lay, by the engagement of the roller 20 on the arm 19, with the end 21 of the arm 21; but whenever, for any reason, a shuttle 23 extends beyond the end of its box, and beyond the end of the race plate of the lay, as shown in Figs. 2 and 3, the free end of the arm 14 will be prevented from being raised by coming in contact with the end of the shuttle, and the roller 20 on the arm 19 will therefore be prevented from riding up on the end 21 of the arm 21, and will consequently depress or move down said arm, and cause the shipper shaft 10 to be rotated, and the shipper rod 24, through shipper 11 and lock lever 12, to be operated to ship the belt and stop the loom. It will thus be seen,that the loom is automatically stopped on the forward motion of the lay by our stop motion, and therefore the picking of the shuttles on the backward movement of the lay, and the resulting smash are prevented.

The advantages of our stop motion for looms will be readily appreciated by those skilled in the art. It is of very simple construction and operation, and may be applied to, and combined with looms of the ordinary construction already in use, without altering the construction of the loom, or changing the parts thereof.

When for any reason it is not desired to use the stop motion, the arm 21 is adjusted on the shipper shaft 10 so as not to be engaged by the roll 20 on the arm 19.

It will be understood that the details of construction of our stop motion mechanism may be varied somewhat if desired, and the same may be combined with other forms of shipping mechanism than the Knowles shipping mechanism referred to.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a stop motion for looms, the combination with the lay, of an arm pivoted at one end on the front thereof, with its free end bent around the end of the race plate, and adapted to be engaged by a shuttle projecting from its box, and said pivoted arm provided with an arm extending downwardly therefrom, at the front of the lay, with its lower end adapted to engage an arm fast on the shipper shaft, on the forward motion of the lay, for the purpose stated, and said arm and shipper shaft, substantially as shown and described.

2. In a stop motion for looms, the combination with the lay, of an arm located at the end of the lay, and pivoted at one end on the front side thereof, with its free end extending around the end of the race-plate, and adapted to be engaged by a shuttle projecting from its box, and said pivoted arm provided with an arm extending downwardly therefrom, on the front side of the lay, with its lower end adapted to engage an arm fast on the shipper shaft, for the purpose stated,and said arm and shipper shaft, and a knob or stud secured on the lay for supporting the free end of the pivoted arm, substantially as shown and described.

HENRY GAUNT. SAMUEL E. WILD.

Witnesses:

JOSEPH M. WOELFEL, SIMEoN GAUNT.

ICO 

